| 摘要 |
An alarm condition detection apparatus (107) for a cellular communication system comprises a monitoring processor (201) which monitors the input and output of a network element of the cellular communication system. The alarm condition detection apparatus (107) also comprises a model processor (209) which determines an expected output from the network element in response to a monitored input to the network element by evaluating a model of the network element for the monitored input. The model may be a simple association between predefined input messages and expected output messages arising from these input messages. An alarm generator (211) is arranged to generate an alarm in response to a detection of a discrepancy between the expected output and the monitored output of the at least one network element. The alarm condition detection apparatus (107) may be hardware and software segregated from the associated network element. |
